<style>
  /* common.css */
  * {
    margin: 0;
    padding: 0;
  }
  .page-container {
    margin: 20px auto;
  }

  /* login.css */
  form.form-example {
    display: table;
  }
  div.form-example {
    display: table-row;
  }
  label,
  input {
    display: table-cell;
    margin-bottom: 10px;
  }
  label {
    padding-right: 10px;
  }
</style>
